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UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Operating activities: |  |
Net income | $ 806.7 | $ 755.3
Reconciliation of net income to net cash flows provided by operating activities: |  |
Depreciation, amortization and accretion | 319.9 | 292.0
Non-cash asset impairment charges (see Note 4) | 8.8 | 11.0
Equity in income of unconsolidated affiliates | (56.5) | (44.5)
Distributions received from unconsolidated affiliates | 71.7 | 51.3
Net gains attributable to asset sales and insurance recoveries (see Note 16) | (89.6) | (63.9)
Deferred income tax expense (benefit) | 0.2 | (6.5)
Changes in fair market value of derivative instruments | (7.8) | 12.3
Net effect of changes in operating accounts (see Note 16) | 342.5 | (8.0)
Other operating activities | 8.2 | 0.9
Net cash flows provided by operating activities | 1,404.1 | 999.9
Investing activities: |  |
Capital expenditures | (699.7) | (631.6)
Contributions in aid of construction costs | 4.3 | 8.7
Decrease (increase) in restricted cash | 22.3 | (63.8)
Investments in unconsolidated affiliates | (284.7) | (291.4)
Proceeds from asset sales and insurance recoveries (see Note 16) | 96.3 | 130.5
Other investing activities | 0 | 0.4
Cash used in investing activities | (861.5) | (847.2)
Financing activities: |  |
Borrowings under debt agreements | 4,181.5 | 6,174.6
Repayments of debt | (3,160.0) | (4,826.6)
Debt issuance costs | (15.9) | (17.3)
Monetization of interest rate derivative instruments (see Note 4) | 0 | (168.8)
Cash distributions paid to limited partners (see Note 10) | (639.2) | (577.6)
Cash distributions paid to noncontrolling interests (see Note 10) | (8.0) | (2.4)
Net cash proceeds from the issuance of common units | 83.0 | 554.1
Other financing activities | (52.5) | (24.5)
Cash provided by financing activities | 388.9 | 1,111.5
Net change in cash and cash equivalents | 931.5 | 1,264.2
Cash and cash equivalents, January 1 | 56.9 | 16.1
Cash and cash equivalents, March 31 | $ 988.4 | $ 1,280.3

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- Definition The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591551-111686 + Details
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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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